Cotton-seed linter.



N. B. HENRYl COTTON SEED LINTER.

APPLICATmN HLED nc.26. |916.

1 ,27 6, 355 Patented Aug. 20, 1918.

ATTORNEY.

1 BY Y W7' NELSON B. HENRY, 0F ATLANTA, GEORGIA, ASSIGNOR TO THE MURRAY COMPANY, 0F Y DALLAS, TEXAS, A CORPORATION 0F TEXAS. i

COTTON-SEED LVINTER.

Specification of Letters Patent. Patented Aug, 20, 1918,

Application led December 26,1916. Serial No. 138,984.

useful Improvements in Cotton-Seed Linters,

of which the following is a specification.

My invention has relation to an improvement in cotton seed linters and in such con` ducting` the seed so freed to a chute and con#v veyer. The lint in the saw teeth is removed by a brush revolving in a direction opposite Y to that in which the saw cylinder revolves and the bristles ofthe brush sweep over the periphery of the saw cylinder to discharge the lint vertically and tangentially away from the saws. In theory the rapidly revolving brush creates or sets up a current of air designed to catch the lint particles as they leave the saws rand to carry said particles horizontally into the lint flue.V In prac.- tice however it has been heretofore extremely diiiicult if not impossible to regulate the strength of this air current so that on the one hand a portion of the lint is prevented from following the trash, etc., in a verticalV direction into the seed conveyer and, on the other hand, the lint and the lint only may be conveyed to the flue, the air current not being strong enough to catch up and convey away the vertically moving particles o trash, etc., to said flue.

It is the main object of my invention to provide means in a linter for regulating the strength and the direction of the air current set up by the revolving brush whereby the lint andthe lint only is conveyed to the lint flue and the trash, motes and dirt freed from the lint are permitted by their weight to descend to the seed conveyer unaccompanied by particles of lint.

In the carrying outiof my invention thel casing which incloses the saw cylinder and brush and from which the lint flue leads,- is

provided with means dividing the space below the saws and brush cylinder into a sinuous channel, through which, when the brush revolves,.air is drawn in a sinuous path from in front of the saws downward over the discharge to the seed conveyer and then upwardly below the brush into the lint flue. Anadjustable board which may be called a mote board serves when moved to decrease or increase the area of the passage over the seed conveyer and to thus decrease or increase the strength of the air current coi passing upward below the brush toward the lint iiue. The means dividing the chamber into a Vsinuous passageway, by preference, consists of an adjustable part-ing board projecting upward to a point between the periphery of the saw cylinder and the brush.

cylinder to constitute an eifective means for separating the heavier particles such as immature seed from the lint and motes at the point where the brush takes off the lint'fro the teeth'of the saws. 1V

','Ihe nature and scope of my invention will be more fully understood from the following description taken in conjunction with the accompanying drawing forming part hereof and which illustrates in sectionla delinting machine embodying the main features of my invention. Y

Referring to said drawing, l represents the casing of the linter set upon a floor or platform which casing is closed at the top and rear or brushv end of the machine during the operation of said machine. At the top of the front end of the casing 1 is arranged the roll box 2 into which the seed to bedelinted is fed and in this box 2 rotates the float 3 for agitating the seed andpprop'erly presenting the same to the saws 4 and ribs 5 arranged lbelow theV roll box 2 and within said casing. The seed is conveyed along the ribs 5 after being presented to the saws l and is discharged into the inclined chute 6 which conducts the seed to a trough 7 in which revolves a screw conveyer 8. To the rear o f the saws 4 is arranged the revolving brush cylinder 9 the cylinder 9 revolving in a direction oppositev to that in which the saws l revolve and at a much higher speed. The bristles of the cylinder 9 sweep across the periphery of each of the saws to 'disengage the lint caught up by said saws after passing through the seed in box 2.

So far as described the construction is sub- Stantially the same as in an ordinary delinting machine.

The lint Hue 10 is connected to the rear of the casing 1 and terminates at its base at a point below the doi'ling brush cylinder 9 and slightly in front of the axis of said cylinder V'lhe lower wall 11 ot the portion of flue 10 .vhich extends into the interior of the machine is relatively close to the periphery of said cylinder as also the upper wall 12 oi' said iiue 10, the arrangement being such that to all intents and purposes the brush cylinder in ,Lolving sweeps across the inlet to flue 10 and delivers the air generated by the `revolution oi the brush cylinder into said flue.

From the lower wall 11 of the flue depends a movable board 13, said board being hinged as at 1-'ito the wall 11 of the flue and extending diagonally downward from said liuc to the trough 7. The board 13 although it may be regarded a mote board performs several other functions one of which is to form the rear wall orn a V shaped chamber arranged Vbelow the brush and saw cylinders, the front wall or' said chamber being constituted by the seed Chute G.

The board 13 is provided vith means for moving it forward or backward ou its hinge 1d one form oic such means consisting of a crank 'arm 15 connected by link 1G to the boardat or near its tree end.

The l! shaped chamber thus formed is divided longitudinally by a partition 17 in the nature of a parting board. This partition 17 is hinged or pivoted at its lower end as at 18 to the longitudinal beam 19 which is fixed in the casing some distance above the trough 7. rlhe upper end of the parting board or partition 17 extends upward between the contiguous portions of the pcriphery of the saw and brush cylinders. One of its functions is to separate the heavier particles, immature seed, etc., from the lighter particles, metes, dirt and trash, during the lint removing operation. The second of the functions of this partition 17 is to prevent air from passing from the front of the casing at the top of the seed chute 6 directly across the chamber below the saw and brush cylinders into the lint flue 10, the partition 17 with the bea-m 19 dividing thevchamber into two compartments which communicate directly only at the bottom of the beam 19 and between said beam and the trough 7. The partition 17 is movable toward or away from the saw cylinder by means of crank arm 20 and link 21 to take up in one instance for the wear and tear on the saws and in the other instance to accommodate for the replacement of an old saw cylinder by a new one. The third function of the board 13 is to regulate the amount of air passing below the beam 19 and this function is accomplished by moving the free end of the board toward or away from the under surface of said beam 19 to thereby obstruct contract or expand the passageway below the beam.

Inasmuch as the revolving brush cylinder creates a suction in the rear compartment of the chamber below the saw and brush cylinders, air will rush into the lor-V ward compartment and be deflected to the opening or passageway under beam 19. The air current thus created passes upward in the rear compartment and is discharged into the iue 10. The air is thus compelled by the partition 17 to talre a sinuous course through the chamber and the force of the current in the rear compartment can be and is regulated by the movement or adjustment of the mote board 13 which constitutes the rea-r wall of the chan'iber. lf now it is found that the current of air passing through the rear compartment is too strong to permit the particles et dirt to separate from the lint and to drop vertically into the trough 7, the rear wall of the chamber, c. the mote board 13, is moved toward the beam to close the passageway under the beam more or less as required. lf however the air current through the rear compartment is too weak to carry off the lint into the flue, then said board 13 is moved away from the beam to widen said passageway and permit of a more or less increase 'in the strength of said air current. Y

Having thus described the nature and objects of my invention what I claim as newand desire to secure by Letters Patent, is-

1.*Yln a cotton gin having a saw cylinder, a doiiing brush inclosed in a casing and a lint Hue, said casing having an opening therein opposite the lint flue permitting the entrance or" an air current, a chamber in the lower part of the casing through which said air current passes to the liuc, a conveyer at the bottoni yof said chamber, a seed chute leading to the conveyer above which chute said air current passes and means causing a sharp Lbend in said current directly above and close to said conveyer.

2. ln a cotton gin having a saw cylinder, a doiling brush inclosed in a casing and a lint iue, said casing having an opening therein opposite the lint iiue permitting the entrance or an air current, a chamber in the lower part 01' the casing through which said air current passes to the flue, a conveyer at the bottoni of said chamber, a seed chute leading to the conveyer above which chute said air current passes and a parting board arranged directly above and close to said conveyer and arranged to cause a sharp bend in said air current directly above and in proximity to the conveyer.

3. ln a cotton'gin having -a saw cylinder, a dofling brush inclosed in a casing and a lint flue, said casing having an opening therein opposite the lint iue permitting the entrance of an air current, a chamber in the lower part of the casing through which said air current passes to the flue, a conveyer atv contact between the saw and brush, said beam and adjustable partition constituting a means for causing a sharp bend in the air current directly above and close to said conveyer.

Ll. In a cotton ginhaving a saw cylinder,

Va doiiing brush inclosed in a casing and a lint flue, said casing having an opening therein opposite the lint flue permitting the 20 entrance of an air current, a chamber in the lower part of the casing through which said Copies of this patent may be obtained for ve cents each, by addressing the "Commissioner nt Patents.

air current passes to the flue, a conveyerat v the bottom of said chamber, a seed chute leading to the conveyer above which chute said air current passes and a parting board arranged directly above and close to said conveyer and arranged to cause a sharp bend in said air current directly above and in proximity to the conveyer, a board depending downward from the lower wall of the Hue to the conveyer and means for moving the board toward or away from the parting board to thereby regulate the volume of air passing below said parting board.

In testimony whereof I have signed my name to this specification in the presence of Witnesses:

W. D. ELLIS, Jr., C. EYSEEGER.

Washington, D. C. 

